Improvement in filteeufg, evaporating, and gbanijlating saoohaeine liquids



@uitrit taten atmtffire.

JAMES n. HOPKINS, ou DAYTON, OHIO, ASSIGNOR TO HIMSELF AND JACOB o. JOYCE, OF sans rLAoE. Y

Letters Patent No. 61,200', dated January 15, 1867.

IMPROVEMENT IN PILTERING, BVAQPORATING, AND GRANULATING SAGGHARINE LIQUIDS.

@tige tlgehule feierten trim there tettct ateltt mit mnltingpart nf tigt smite.

TO ALL WHOM IT MAY GONCERN:

Beit known that I, JAMESB.. HOPKINS, of Dayton, in the county of Montgomery, in the State of Ohio have invented a new and improved Process of Filtering, Evaporating, and Granulating Saccharine Liquids; and I do declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making a partof this specification, in which- Figure 1 is a perspective view of evaporating-pan with cover on.

Figure 2is a perspective view of the filtering' and purifying tanks.

Similar letters of reference indicate corresponding parts in the several gures. I

The object of the invention is to produce more rapid evaporation by constructing a lid or -cover to an evaporating-pan. Provision is made for leaving a portion of the evaporator uncovered in order toallow sufficient space for removing the scum that will ow to the open or cooler portion of the egaporating-pan; also, for ltering the juice before it enters the cvaporating-pan by passing it through tanks or boxes containing straw, clay, and marble chips or spalls; also, for granulatin'g by introducing cold water into the evaporator when the sirup arrives at the consistency of about forty degrees'by the saccharometer.

To enable others skilled in the art to understand my invention, I will describe its construction and operation.

In the accompanying drawing, A represents the lid-or cover on the evaporating-pan, B. This cover or lid is constructed out of vWood, or any suitable 'materiab and attached to the evaporating-pan, B, by hinges, so it can bc opened and closed at pleasure. The object of this lid or cover, A, is to retain the steam. Conining` the l heat, and thereby causing more rapid evaporation, and having only a part of the evaporating-panLB, covered,

is for the purpose of leaving sufficient space for removing the scum that will low to the front or cooler portion of the evaporator, which open space is represented by letters C C on drawing. Letter' D, tig. 2, represents the filtering process. F, G, and H; these tanl'rs may be constructed square or round. Tank F I ll about one-half full of straw; on the straw I place about two inches of common yellow clay, then straw on top of clay to Within six inches of top of tank. Tank Gr I lill with straw. Tank H I ill with marble chips. The jui'ce'ifrom the mill or receiver ows into the ltering tanks, and thence to the evaporating-pan, by .means of the pipes or conduits, J J J' J'. The object of this filtering arrangement is that all impurities may be removed from the juice before it enters the evapOrating-pan, B, causing it to granulate more` readily, which I produce in the following manner: As soon as the sirup arrives at the consistency of about forty degrees by the saccharometer, I add cold' Water to the amount of about one pint to eight gallons of Sirup, stir rapidly for from one to three minutes, then draw off by means of spout or conduit to the cooler, Where it will granulats in from twenty`-four to thirty hours.

Having described my invention, what I claim Aas new, and desire to secure by Letters Patent, is- 1. The evaporator lid or cover A, as described and for the purposes set forth. 2. The mode herein described for filtering. and purifying the juice in combination with the granulating i process, substantially as and for the purposes set forth.

3. The mode herein set forth` for producing granulation in combination with'the evaporator lid A and the lterng process, substantially as described.

J AS. R. HOPKINS. Witnesses J. O. Joran, THOS. D. MITCHELL. 

